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Finding the Fourth Proportional to 216,814.20, 325,221.30 and 181,822.20

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Solution

The fourth proportional to 216,814.20, 325,221.30 and 181,822.20 is: 272,733.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,814.20 : 325,221.30 = 181,822.20 : x
  2. Step 2: Convert to fraction form
    216,814.20/325,221.30 = 181,822.20/x
  3. Step 3: Cross multiply
    216,814.20x = 325,221.30 × 181,822.20
  4. Step 4: Simplify right side
    216,814.20x = 59,132,452,252.86
  5. Step 5: Solve for x
    x = 59,132,452,252.86/216,814.20
  6. Step 6: Final answer
    x = 272,733.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.